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ION CONDUCTIVE SUBSTANCE, ELECTROLYTE, AND BATTERY

Resumen de: EP4600971A1

An ion conductive substance contains an alkali metal element, a metal element M, a halogen element, a dopant element X, and an oxygen element, in which the metal element M is at least one of Ta and Nb, and the dopant element X is at least one element selected from the group consisting of Ga, In, Sb, Bi, Mg, Ca, Sr, and Ba.

POSITIVE ELECTRODE MATERIAL, POSITIVE ELECTRODE, AND BATTERY

Resumen de: EP4601044A1

Provided is a positive electrode material containing a positive electrode active material and a polymer having an ability to preferentially conduct metal ions, in which the positive electrode active material is a material that occludes and releases lithium ions at 4.0 V or more with respect to Li/Li⁺.

ELECTRODE MATERIAL, POSITIVE ELECTRODE MATERIAL, NEGATIVE ELECTRODE MATERIAL, POSITIVE ELECTRODE, NEGATIVE ELECTRODE AND BATTERY

Resumen de: EP4601043A1

Provided is an electrode material containing an electrode active material and a polymer having an ability to preferentially conduct metal ions, in which a volume ratio of the polymer to a total volume of the electrode active material and the polymer is 0.01 to 0.65.

CYLINDRICAL LITHIUM METAL SECONDARY BATTERY

Resumen de: EP4601059A1

A cylindrical lithium metal secondary battery, comprising: a casing, a battery cell electrode set arranged in the casing, and an electrolyte filling the housing. The battery cell electrode set comprises a wound electrode set and tabs arranged on the wound electrode set; the wound electrode set is formed by winding a positive electrode, a negative electrode, and a separator; the negative electrode is a metal lithium sheet; the metal lithium sheet serves as a negative electrode current collector and a negative electrode active material. According to the cylindrical lithium metal secondary battery, a metal lithium sheet is used as a negative electrode and the metal lithium sheet has the functions of both an active material and a current collector, so that a common copper current collector is no longer needed, the thickness of the separator of the wound electrode set is greatly reduced, and the energy density of the battery is greatly improved. Additionally, by using a cylindrical battery structure, stable charge and discharge cycles are achieved without applying an external pressure.

CATHODE ACTIVE MATERIAL, PREPARATION METHOD THEREFOR, CATHODE COMPRISING SAME, AND LITHIUM SECONDARY BATTERY

Resumen de: EP4601038A1

The present disclosure relates to a positive electrode active material of a lithium-rich manganese-based oxide that exhibits improved capacity characteristics as well as excellent life characteristics and rolling characteristics, and a method for preparing the same. The positive electrode active material includes a lithium-rich manganese-based oxide represented by the following Chemical Formula 1, and having a structure in which a rock-salt-type lithium manganese oxide and a layered lithium transition metal oxide are mixed, wherein the lithium-rich manganese-based oxide may have a prescribed internal porosity.        Chemical Formula 1     LiaNibCocMndMeO2in Chemical Formula 1, 1.00

MODIFIED GREEN COKE MATERIAL, PREPARATION METHOD THEREFOR, AND USE THEREOF

Resumen de: EP4600328A1

The disclosure provides a modified green coke material, a method for preparing the modified green coke material, and an application of the modified green coke material. A sum of percentages of a long fibrous structure and a broad-domain structure in a polarized microstructure of the modified green coke material is in a range of 55 ~ 99%, and a percentage of volatile components in the modified green coke material is in a range of 1% ≤ volatile components matter < 5%. In regard to the modified green coke material provided in the disclosure, the long fibrous structure and the broad-domain structure are increased, the volatile components are effectively reduced, and light components are further excluded, thereby eliminating a self-bonding property of raw materials. In this case, further agglomeration will not occur during a subsequent heat treatment for preparing a graphite negative electrode material. Using the modified green coke material to prepare the graphite negative electrode material can effectively improve a graphitization degree, a gram capacity, and a compaction density of the graphite negative electrode material, thus comprehensively improving the performance of the graphite negative electrode material.

ISOLATION PLATE, ISOLATION PLATE ASSEMBLY, BATTERY MODULE, BATTERY PACK, AND ELECTRIC DEVICE

Resumen de: EP4601103A1

The present application discloses a partition plate, a partition plate assembly, a battery module, a battery pack, and an electrical device, and belongs to the technical field of batteries. An partition plate of the present application is applied to a battery module, the partition plate including: a plurality of exhaust holes, a portion of the exhaust holes in the plurality of the exhaust holes having an exhaust direction provided along a first direction, and another portion of the exhaust holes in the plurality of the exhaust holes having an exhaust direction provided along a second direction, where the first direction and the second direction are provided at an included angle to the vertical direction, respectively, and the first direction and the second direction are provided at an included angle. The exhaust holes of the present application are provided at least toward the first direction and the second direction, and along a thickness direction of the partition plate body, which can avoid the risk of the top of the battery module or the battery pack bursting due to the difficult exhaust from the top, and thus can prevent the problem of the failure of the battery module or the battery pack from occurring.

LITHIUM SILICON OXIDE, NEGATIVE ELECTRODE COMPRISING SAME, AND LITHIUM SECONDARY BATTERY COMPRISING NEGATIVE ELECTRODE

Resumen de: EP4600210A1

The present invention relates to a lithium silicon oxide exhibiting suppressed gas generation upon application to an aqueous slurry, a negative electrode including the same, and a lithium secondary battery including the negative electrode, and provides a lithium silicon oxide having peaks with 2θ being 23.8±0.5°, 24.3±0.5°, and 24.7±0.5° in an XRD pattern measured using non-monochromatized CuKα rays, and satisfying Mathematical Equation 1, a negative electrode including the same, and a lithium secondary battery including the negative electrode.

LITHIUM-ION BATTERY ELECTROLYTE, LITHIUM-ION BATTERY AND ELECTRONIC DEVICE

Resumen de: EP4601061A1

Disclosed are a lithium-ion battery electrolyte, a lithium-ion battery and an electronic device. The electrolyte at least includes: a non-aqueous solvent, including a linear carboxylic acid ester solvent; a lithium salt, at least one of which contains sulfur; and an additive, including thiophene, and the content of the thiophene in the electrolyte is 0.1wt% to 3wt%.

BATTERY CELL AND BATTERY DEVICE HAVING THE SAME

Resumen de: EP4601077A1

A battery device includes a cell assembly, including a first battery cell and a second battery cell, stacked in a first direction. The first battery cell and the second battery cell respectively include a receiving portion in which an electrolyte and an electrode assembly are received within a case, and a plurality of extension portions protruding outwardly from the receiving portion in the first direction. The second battery cell is disposed to contact at least one of the extension portions of the first battery cell.

SLITTING METHOD AND HARDWARE FOR COATED FLEXIBLE SUBSTRATES

Resumen de: WO2024091582A1

A method and system for slitting a lithium-coated polyethylene terephthalate (PET) roll is provided. The roll undergoes laser ablation to remove a portion of a layer of lithium where a slit is desired exposing the PET substrate underneath. The roll then undergoes a blade cutting process wherein the roll is cut along exposed PET substrate, producing a plurality of slit rolls. The laser ablation of the roll prior to blade cutting allows lithium to be removed, preventing lithium build-up on the blade. This reduces maintenance time, improves the quality of the slit roll edges, and allows for longer lengths of rolls to be cut. The laser ablation also allows for rolls with thick layers of lithium to be blade cut.

BATTERY PACK

Resumen de: EP4601097A1

A battery pack according to an embodiment of the present invention includes: a housing; at least one battery module accommodated in the housing; a venting part provided in the housing to discharge a gas generated in the battery module; a filter disposed in front of the venting part in a flow direction of the gas; a scraper configured to remove foreign substances accumulated on the filter; and a driving part operating by the flow of the gas to reciprocate the scraper.

SECONDARY BATTERY AND DEVICE

Resumen de: EP4601024A1

A secondary battery is provided. The secondary battery includes a cathode, an anode, and an electrolyte, wherein the electrolyte includes a fluorine-containing sulfonylimide lithium salt, and the content in percentage by mass of the fluorine-containing sulfonylimide lithium salt is L%, based on the total mass of the electrolyte; and the anode includes an anode active material and a solid electrolyte interface film on the surface of the anode active material, the anode has a compacted density of Y g/cm<3>, the solid electrolyte interface film has a thickness of M nm, and the anode active material has an OI value of N. The secondary battery satisfies: 2.5 ≤ 50LM+15Y+6N≤17. The secondary battery satisfying the defined relationship has excellent low-temperature performance and rate performance.

BATTERY MODULE HAVING FIREWALL

Resumen de: EP4601100A1

The present disclosure relates to a battery module. The battery module according to an embodiment of the present disclosure may include a plurality of cell assemblies, each including a plurality of battery cells connected in parallel with each other, and a firewall disposed between two adjacent cell assemblies among the plurality of cell assemblies.

WOUND BATTERY CELL, BATTERY, BATTERY ASSEMBLY, AND ELECTRICAL APPARATUS

Resumen de: EP4601062A1

A jelly roll battery cell, a battery, a battery assembly and an electric device. The jelly roll battery cell (100) includes a main body portion (10) and a tab portion (20); one side of each positive winding portion (101a) in one part of positive winding portions (101a) is connected to one positive tab (21), and one side of each positive winding portion (101a) in the other part of the positive winding portions (101a) is connected to two positive tabs (21); and/or, one side of each negative winding portion (101b) in one part of negative winding portions (101b) is connected to one negative tab (22), and one side of each negative winding portion (101b) in the other part of the negative winding portions (101b) is connected to two negative tabs (22). This structure not only increases a number of the positive/negative tabs and a flow area of the jelly roll battery cell, but also avoids interlayer pseudo soldering between excessive positive/negative tabs and electrically conductive connecting welds by means of a restriction on the number of positive/negative tabs.

BATTERY MODULE TOP COVER STRUCTURE

Resumen de: EP4601099A1

The present invention provides a structure of a battery module including: a battery cell laminate; a housing having an open upper end and accommodating the battery cell laminate; and a top cover covering the upper end of the housing, wherein the top cover includes: a first layer 11 having a rigid body; a second layer 12 having a flexible body and laminated on the first layer 11; a ventilation hole 111 perforating the first layer 11 in vertical direction; and a non-circular slit 121 perforating the second layer 12 in the vertical direction, and the first layer 11 and the second layer 12 are fixed to each other along at least a section of edges thereof.

BATTERY BOX AND BATTERY PACK APPLYING THE SAME

Resumen de: EP4601088A1

The disclosure relates to the technical field of batteries and particularly discloses a battery box and a battery pack applying the same. The battery box includes a bottom plate (1), a lateral plate (2), a lower support (3), a partition (4), and an upper support (5), in which a top surface of the bottom plate is provided with a first protrusion, the lateral plates are provided perpendicular to the bottom plate on two opposite edges of the bottom plate, an interior side of the lateral plate is arranged with a first snap-block (21) and a second snap-block (22) along an extension direction, the first snap-block is closer to the bottom plate than the second snap-block, two opposite ends of the lower support are provided on the first snap-block respectively, a bottom of the lower support is abutted against a first protrusion (11), a top of the lower support is arranged for placing cells, two opposite ends of the partition are fixedly connected to the second snap-block respectively, a top of the partition is provided with a second protrusion (41), two opposite ends of the upper support are provided on the second snap-block respectively, a bottom of the upper support is abutted against the second protrusion, and a top of the upper support is arranged for placing cells.

CYLINDRICAL SECONDARY BATTERY

Resumen de: EP4601086A1

Disclosed is a cylindrical secondary battery (100) in which an insulating member (170) located between a rivet terminal (150) and a cylindrical can (210, 310) includes protrusions (172a, 172b, 272a, 272b, 372a, 372b) protruding therefrom upward and downward, thereby preventing rotation of the rivet terminal (150). The cylindrical secondary battery (100) may include an electrode assembly (120) including a positive electrode plate (121), a separator (123), and a negative electrode plate (122), a cylindrical can (210, 310) configured to accommodate the electrode assembly (120) and to be electrically connected to the negative electrode plate (122) and including an open lower end portion, a rivet terminal (150) configured to be electrically connected to the positive electrode plate (121) through an upper surface of the cylindrical can (210, 310), an insulating member (170) located between the cylindrical can (210, 310) and the rivet terminal (150), and a non-polar cap plate (160) configured to seal the lower end portion of the cylindrical can (210, 310). The insulating member (170) includes protrusions (172a, 172b, 272a, 272b, 372a, 372b) formed on at least one surface thereof facing the cylindrical can (210, 310) or the rivet terminal (150).

POSITIVE MATERIAL, PREPARATION METHOD THEREOF, AND SECONDARY BATTERY

Resumen de: EP4601025A1

The present disclosure provides positive material, preparation method, and secondary battery. The positive material includes lithium iron phosphate active material and coating layer. The lithium iron phosphate active material includes secondary particles, first primary particles are distributed between at least part of the secondary particles, and the coating layer includes first coating layers covering surfaces of secondary particles. The first coating layers cover surfaces of secondary particles in surface-coated state, and first coating layers each have a reticular structure. The surfaces of secondary particles each have surface-coated coating layer having reticular structure, which improves a capacity, rate performance, and cycle performance of the positive material. Through matching between the first primary particles and the secondary particles, compaction density of the positive material is increased, agglomeration of particles of the positive material is reduced, and the capacity and the rate performance of the positive material are improved.

PRESSURE SENSOR, BATTERY CELL, AND ELECTRICAL DEVICE

Resumen de: EP4600622A1

ABSTRACTA pressure sensor (400) including an electrode layer (40) and a sensitive layer (42). The sensitive layer (42) is provided with at least two types of protrusion structures (422) of different heights. Each type of the protrusion structure (422) includes at least one protrusion. Each protrusion is located on a side of a base layer (420) facing the electrode layer (40), and the area of contact between each protrusion and the electrode layer (40) is configured to vary with changes in pressure applied to the electrode layer (40). In this way, the pressure sensor (400) can adapt to detection environments under various pressures, thereby effectively increasing the detection range of the pressure sensor (400) and improving the detection sensitivity of the pressure sensor (400). Further provided is a battery cell (20) and an electrical device.

MODULE BALANCING METHOD AND BATTERY MANAGEMENT SYSTEM EMPLOYING THE SAME

Resumen de: EP4601148A1

Disclosed are a module balancing method and a battery management system, the system including: a charge equalization circuit performing module balancing between a first module including a plurality of central cells each having a potential falling within a central potential range, a second module including at least one lower cell having a potential falling within a lower potential range, and a third module including at least one upper cell having a potential falling within an upper potential range, among the plurality of battery cells connected in series with each other; and a control unit calculating each module voltage of the first module, the second module, and the third module based on each cell voltage of the plurality of battery cells, determining an energy transfer direction based on the calculated module voltage, and controlling the module balancing based on the determined energy transfer direction.

Module d’alimentation

Resumen de: FR3159049A1

L’invention concerne un module d’alimentation (1) comportant un vase d’expansion pour liquide (2) et un vase d’expansion pour air (3). Le vase d’expansion pour li-quide (2) et le vase d’expansion pour air (3) sont formés dans un boîtier (4) commun. Figure pour l’abrégé : (Figure 1)

Agencement de régulation de température permettant de réguler la température d’un composant, en particulier d’un véhicule électrique à batterie

Resumen de: FR3159051A1

L’invention concerne un agencement de régulation de température (20) permettant de réguler la température d’un composant (22). L’agencement de régulation de température (20) comprend un circuit de régulation de température (21) dans lequel un agent de régulation de température (T) peut circuler et dans lequel est disposé le composant (22) dont la température doit être régulée, de sorte que de la chaleur peut être transmise entre ledit composant (22) et l’agent de régulation de température (T). En outre, l’agencement de régulation de température (20) comprend un dispositif de transport (23) permettant d’entraîner l’agent de régulation de température (T) dans le circuit de régulation de température (21). En outre, l’agencement de régulation de température (20) comprend un récipient de stockage (1) disposé dans le circuit de régulation de température (21) et permettant le stockage intermédiaire de l’agent de régulation de température (T). Le récipient de stockage (1) comprend un boîtier (2) qui entoure un espace intérieur de boîtier (3) pouvant être traversé par l’agent de régulation de température (T) et permettant de recevoir l’agent de régulation de température (T). En outre, le récipient de stockage (1) comprend une entrée pour fluide (5) disposée sur le boîtier (2) et présentant une ouverture d’entrée (4), laquelle entrée pour fluide permet d’introduire l’agent de régulation de température dans

Vase d’expansion pour liquide

Resumen de: FR3159048A1

L’invention concerne un vase d’expansion pour liquide (1) comportant un espace de réception (3) permettant de recevoir le liquide de refroidissement et un espace de trop-plein (4) permettant de recevoir le liquide de refroidissement en excès provenant de l’espace de réception (3). L’espace de réception (3) et l’espace de trop-plein (4) sont alors reliés de manière fluidique par l’intermédiaire d’un canal de trop-plein (5). Figure pour l’abrégé : Fig. 1

SYSTEME DE TRACTION DE VEHICULE ELECTRIQUE OU HYBRIDE COMPRENANT DEUX BOUCLES DE FLUIDE DE RÉGULATION THERMIQUE

Nº publicación: FR3158911A1 08/08/2025

Solicitante:

STELLANTIS AUTO SAS [FR]
STELLANTIS AUTO SAS

Resumen de: FR3158911A1

Système de traction de véhicule électrique ou hybride comprenant un circuit de régulation thermique comportant une première boucle de circulation (8) disposant d’une première pompe de circulation de fluide (20), d’au moins un refroidisseur (22) ou un réchauffeur (24), d’une batterie de traction (26) et d’une première vanne de distribution du fluide (6), comportant une deuxième boucle de circulation (12) disposant d’une deuxième pompe de circulation de fluide (32), de composants électriques (34) comprenant une machine de traction, d’un échangeur thermique vers l’extérieur (38) et d’une deuxième vanne de distribution du fluide (10), la première boucle (8) et la deuxième boucle (12) comportant des fluides qui sont différents, et une motorisation commune (16) actionnant en même temps les deux vannes de distribution (6, 10). Figure 1